A Comparative Study between High Flow Nasal Oxygen Therapy and Venturi Mask Oxygen Therapy for Postoperative Laparoscopic Bariatric Surgery Patients with Atelectasis

Abstract

igh Flow Nasal Oxygen (HFNO2) therapy provides warmed humidified oxygen and low-level, flow-dependent positive airways pressure, and may be more tolerable than Continuous positive airway pressure (CPAP) or non-invasive ventilation; also, HFNO2 improves washout of nasopharyngeal dead space, resulting in improved oxygenation. In giving prophylactic support to preterm newborns after extubation, HFNO2 has been demonstrated to be both safe and non-inferior to standard CPAP with lower incidence of nasal trauma than in the CPAP group. When compared with standard care, prophylactic postoperative high-flow nasal oxygen reduced hospital length of stay and intensive care unit re-admission.